U.S. patent application number 12/700000 was filed with the patent office on 2011-08-04 for system and method for controlling power windows of a vehicle.
This patent application is currently assigned to HONDA MOTOR CO., LTD.. Invention is credited to Brian K. Lickfelt, David G. Peterson, John Sgueglia, Trevor Scott Whitten.
Application Number | 20110190962 12/700000 |
Document ID | / |
Family ID | 44342344 |
Filed Date | 2011-08-04 |
United States Patent
Application |
20110190962 |
Kind Code |
A1 |
Peterson; David G. ; et
al. |
August 4, 2011 |
SYSTEM AND METHOD FOR CONTROLLING POWER WINDOWS OF A VEHICLE
Abstract
A system and method for controlling power windows of a vehicle
includes a receiver mounted on the vehicle for receiving an open
window request signal wirelessly from a portable device, at least
one exterior condition sensor mounted on the vehicle for detecting
an adverse exterior condition relative to the vehicle, and a
controller mounted on the vehicle for communicating with the
receiver and the at least one exterior condition sensor. The
controller commands opening of the one or more power windows when
the receiver receives the open window request signal provided the
at least one exterior condition sensor does not detect an adverse
exterior condition relative to the vehicle.
Inventors: |
Peterson; David G.; (East
Liberty, OH) ; Lickfelt; Brian K.; (Powell, OH)
; Sgueglia; John; (Columbus, OH) ; Whitten; Trevor
Scott; (East Liberty, OH) |
Assignee: |
HONDA MOTOR CO., LTD.
Tokyo
JP
|
Family ID: |
44342344 |
Appl. No.: |
12/700000 |
Filed: |
February 4, 2010 |
Current U.S.
Class: |
701/2 |
Current CPC
Class: |
E05F 15/71 20150115;
G06F 7/00 20130101; E05Y 2900/55 20130101 |
Class at
Publication: |
701/2 |
International
Class: |
G06F 7/00 20060101
G06F007/00 |
Claims
1. A window control system for controlling one or more power
windows of a vehicle, comprising: a receiver mounted on the vehicle
for receiving an open window request signal wirelessly from a
portable device; at least one exterior condition sensor mounted on
the vehicle for detecting at least one adverse exterior condition
relative to the vehicle; and a controller mounted on the vehicle
and configured to communicate with said receiver and said at least
one exterior condition sensor, said controller further configured
to command opening of the one or more power windows when said
receiver receives said open window request signal and said at least
one exterior condition sensor does not detect said at least one
adverse exterior condition.
2. The system of claim 1 further including: a transmitter mounted
on the vehicle for sending a verification signal to said portable
device in response to receipt of said open window request signal by
said receiver, said verification signal transmitted within a
predefined area of the vehicle to request confirmation from said
portable device, said controller configured to command opening of
the one or more power windows only when a confirmation signal is
received from said portable device responsive to said verification
signal.
3. The system of claim 1 wherein said at least one exterior
condition sensor is at least one of a rain sensor for detecting
rain, a temperature sensor for detecting an ambient temperature
around the vehicle or a solar load sensor for detecting a solar
load on the vehicle.
4. The system of claim 3 wherein said at least one exterior
condition sensor includes each of a rain sensor, a temperature
sensor and a solar load sensor.
5. The system of claim 1 wherein said at least one exterior
condition sensor is a rain sensor and said at least one adverse
exterior condition is rain on the vehicle.
6. The system of claim 5 wherein said rain sensor is also used to
control windshield wipers of the vehicle.
7. The system of claim 1 wherein said at least one exterior
condition sensor is a temperature sensor and said at least one
adverse exterior condition is a temperature below a predetermined
threshold temperature.
8. The system of claim 1 wherein said at least one exterior
condition sensor is a solar load sensor and said at least one
adverse exterior condition is a solar load below a predetermined
threshold solar load.
9. The system of claim 1 wherein the one or more power windows
include door windows of the vehicle and a sunroof of the
vehicle.
10. The system of claim 1 further including: at least one close
windows switch mounted on the vehicle for closing all of said one
or more power windows, said controller configured to command
closing of said one or more power windows when said close windows
switch is actuated for closing all of said one or more power
windows.
11. The system of claim 10 wherein said controller commands closing
of all of said one or more power windows only when said close
windows switch is actuated twice in succession and held on the
second actuation.
12. The system of claim 10 wherein the at least one close windows
switch includes a close windows switch mounted inside the vehicle
and another close windows switch mounted on an exterior of the
vehicle.
13. A control method for controlling one or more power windows of a
vehicle, comprising: receiving an open window request signal
wirelessly from a portable device requesting opening of the one or
more power windows of the vehicle; monitoring at least one exterior
condition relative to the vehicle through at least one exterior
condition sensor mounted on the vehicle; determining if opening of
the one or more power windows should be inhibited based on said at
least one exterior condition; and inhibiting opening of the one or
more power windows when determined that said opening of the one or
more power windows should be inhibited, otherwise opening the one
or more power windows.
14. The method of claim 13 further including: transmitting a
verification signal wirelessly to said portable device when said
open window request signal is received; and receiving a
confirmation signal wirelessly from said portable device when said
portable device receives said verification signal, only opening the
one or more power windows when said confirmation signal is
received.
15. The method of claim 13 wherein monitoring said at least one
exterior condition includes monitoring at least one of rain,
temperature or solar load.
16. The method of claim 13 wherein monitoring said at least one
exterior condition includes monitoring at least two of rain,
temperature or solar load.
17. The method of claim 16 wherein monitoring said at least one
exterior condition includes monitoring each of rain, temperature
and solar load.
18. The method of claim 13 wherein determining if opening of the
one or more power windows should be inhibited based on said at
least one exterior condition includes comparing a measured value as
measured by said at least one exterior condition to a threshold
value stored in a memory.
19. A window control method for a vehicle, comprising: receiving an
open window request from a portable device; measuring at least one
exterior condition relative to the vehicle; determining whether
said at least one exterior condition is an adverse exterior
condition; and opening one or more power windows of the vehicle in
response to the open window request unless said at least one
exterior condition is determined to be an adverse exterior
condition.
20. The window control method of claim 19 further including:
transmitting said open window request from said portable device in
response to an unlock button being pushed twice in succession on
said portable device and held for a predetermined period of time
after the second push.
21. The window control method of claim 19 further including:
transmitting a verification signal responsive to said open window
request signal; and receiving a confirmation signal from said
portable device that is responsive to said portable device
receiving said verification signal.
22. window control method of claim 21 wherein said opening of said
one or more power windows is allowed only when said confirmation
signal is received.
23. The window control method of claim 19 wherein said at least one
exterior condition is measured by at least one of a rain sensor, a
temperature sensor or a solar load sensor, and wherein said adverse
exterior condition is at least one of rain, a temperature below a
threshold temperature or a solar load below a threshold solar load,
said adverse exterior condition corresponding to said at least one
exterior condition being measured.
24. A method to control a power window in a vehicle, comprising: a)
sending a wireless activation signal via a portable device to close
a window in the vehicle; b) receiving the activation signal from
the portable device; c) returning a wireless verification signal to
verify the activation signal is authorized for the vehicle; d)
sending a wireless identification signal within a predetermined
range to indicate the portable device is authorized to close
vehicle window and within the predetermined range; e) receiving the
identification signal when the portable device is within the
predetermined range of the vehicle; and f) sending a close command
to a windows controller to close the window provided the
identification signal is received within a predetermined time in
response to the verification signal.
25. The method of claim 24, stopping the windows controller if the
identification signal is not received or if the window is fully
closed.
26. The method of claim 24, wherein the verification signal is a
low frequency signal emitted within a radius of less than ten feet
from the vehicle thereby defining the predetermined range.
27. The method of claim 24, wherein step f) occurs substantially
continuously until the window is closed provided the portable
device is within the range to receive the verification signal and
then send the identification signal to the vehicle.
28. The method of claim 24, wherein step f) continues to execute as
steps c), d) and e) are repeated, indicating the portable device is
within the predetermined range.
Description
BACKGROUND
[0001] Exemplary embodiments herein generally relate to a control
system and method for a vehicle, and more particularly relate to a
window control system and method for controlling power windows of a
vehicle.
[0002] Many vehicles come equipped with systems that enable remote
actuation of various vehicle functions through a portable
communication device (e.g., a key fob). Vehicle functions commonly
included in such remote actuation systems include locking/unlocking
of passenger cabin entry doors, unlatching/latching of trunks and
tailgates, and powered opening/closing of various closures, such as
tailgates, sliding doors, etc. Some of these systems also include a
power window control function that allows windows of the vehicle to
be opened or closed remotely using the portable communication
device. This sometimes includes powered opening or closing of a
sunroof on sunroof equipped vehicles.
[0003] One longstanding problem for vehicle owners is rain or snow
entering a vehicle through an open window, such as a door window or
a sunroof. The open window or windows can be the result of the
vehicle user leaving these open when exiting the vehicle.
Alternatively, in vehicles having remote actuation systems that
include remote window opening functionality, the window or windows
can be opened inadvertently through the portable device. In
addition to the problem of rain or snow entering a vehicle, an
inadvertently opened window can be a security risk to contents left
in the vehicle and can lead to customer dissatisfaction.
[0004] In one known remote window control system, the user is
required to push the unlock button on the key fob two times and
hold down the unlock button on the second push. Window opening
begins only after the unlock button is held for more than a
predetermined amount of time and continues until the window is
fully opened or the held unlock button is released, whichever
occurs first. The required delay before opening is intended to
reduce the likelihood of the windows being opened accidentally, but
unfortunately inadvertent window opening can still occur. To close
the windows, the user pushes the lock button two times and holds
down the lock button on the second push. Again, a delay can be used
to reduce inadvertent closing. After the delay, the windows will
typically move toward their fully closed positions until fully
closed or the lock button is released, whichever occurs first.
[0005] Current systems require the key fob to have a line of sight
to the vehicle before closing the windows. Without a line of sight,
U.S. regulations require the key fob (and thus the user) to be
within six meters of the vehicle to help ensure that the windows
are not inadvertently closed without the user knowing the condition
of the vehicle. It is difficult to determine the distance to the
vehicle using an RF signal transmitted from the key fob itself. In
some cases, vehicle functions are activated even though the key fob
is outside a predetermined radius. In one example, a window is
closed via the key fob when the user is not within a line of sight
of the vehicle. Such circumstance can endanger passengers and/or
passersby since there is no mechanism to stop the window from
closing as the user can be unaware of the hazard.
[0006] Separately, some more advanced remote actuation systems
employ smart communication functionality that requires a user to
only possess a key fob to initiate certain vehicle functions (e.g.,
unlocking doors of the vehicle). In these systems, the user need
not perform any physical operation on the key fob (e.g., pushing of
a button) for operating certain functions, and can leave the fob in
a pocket, purse, etc. for such enabled functions. In operation, the
vehicle will detect the presence of the fob based on sensors and/or
switches. When triggered, the vehicle will send a low frequency
(LF) search field. Within the search field, the vehicle looks for
or searches for the key fob (e.g., sends out a request signal).
[0007] For example, an antenna associated with a particular vehicle
door can emit a low frequency field within a range of about 1 meter
for sensing when the key fob is adjacent the door to be unlocked.
If found, the key fob will reply to the request signal or search
field via RF communications. In this example, the key fob can send
back a unique identifier confirming that it is properly associated
with the vehicle (e.g., a confirmation signal). When the vehicle
receives the confirmation signal, it will unlock a door or doors
providing access into the vehicle.
SUMMARY
[0008] According to one aspect, a window control system is provided
for controlling one or more power windows of a vehicle. More
particularly, in accordance with this aspect, the window control
system includes a receiver mounted on the vehicle for receiving an
open window request signal wirelessly from a portable device. At
least one exterior condition sensor is mounted on the vehicle for
detecting at least one adverse exterior condition relative to the
vehicle. A controller is mounted on the vehicle and is configured
to communicate with the receiver and the at least one exterior
condition sensor. The controller is further configured to command
opening of the one or more power windows when the receiver receives
the open window request signal and the at least one exterior
condition sensor does not detect the at least one adverse exterior
condition.
[0009] According to another aspect, a control method is provided
for controlling one or more power windows of a vehicle. In the
method according to this aspect, an open window request signal is
received wirelessly from a portable device requesting opening of
the one or more power windows of the vehicle. At least one exterior
condition is monitored relative to the vehicle through at least one
exterior condition sensor mounted on the vehicle. A determination
is made if opening of the one or more power windows should be
inhibited based on the at least one exterior condition. Opening of
the one or more power windows is inhibited when determined that the
opening of the one or more power windows should be inhibited,
otherwise the one or more power windows are opened.
[0010] According to still another aspect, a window control method
is provided for a vehicle. In the method according to this aspect,
an open window request is received from a portable device. At least
one exterior condition is measured relative to the vehicle. A
determination is made as to whether the at least one exterior
condition is an adverse exterior condition. The one or more power
windows of the vehicle are opened in response to the open window
request unless the at least one exterior condition is determined to
be an adverse exterior condition.
[0011] According to still another aspect, a method is employed to
control a power window in a vehicle. A wireless activation signal
is sent via a portable device to close a window in the vehicle. The
activation signal is received from the portable device and a
wireless verification signal is returned to verify the activation
signal is authorized for the vehicle. A wireless identification
signal is sent within a predetermined range to indicate the
portable device is authorized to close vehicle window and within
the predetermined range. The identification signal is received when
the portable device is within the predetermined range of the
vehicle. A close command is sent to a windows controller to close
the window provided the identification signal is received within a
predetermined time in response to the verification signal.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a schematic diagram showing an exemplary window
control system for controlling one or more power windows of a
vehicle.
[0013] FIG. 2 is a flowchart showing an exemplary control method
for opening one or more power windows of a vehicle.
[0014] FIG. 3 is another flowchart showing an exemplary smart
communication process.
[0015] FIG. 4 is still another flowchart showing an exemplary
control method for closing one or more power windows of a
vehicle.
DETAILED DESCRIPTION
[0016] Referring now to the drawings, wherein the showings are for
purposes of illustrating one or more exemplary embodiments, FIG. 1
schematically illustrates a window control system 10 for
controlling one or more power windows of a vehicle 12. As shown,
the system 10 can include a receiver 14 mounted on the vehicle 12
and a transmitter 16 both mounted on the vehicle 12. As will be
described in more detail below, the receiver 14 is for receiving an
actuation or activation signal 18 (e.g., open window request
signal) wirelessly from a portable device 20 and the transmitter 16
is for sending a request for verification signal 22 to the portable
device 20 to request appropriate identification therefrom, such as
in response to receipt of the open window request signal 18 by the
receiver 14. The receiver 14 is also for receiving a confirmation
signal 24 from the portable device 20 that is responsive to the
verification signal 22.
[0017] The system 10 can further include a controller or body
control unit 26, which is mounted on the vehicle 12 and is
operatively connected to the receiver 14 and the transmitter 16.
Through the control unit 26, the actuation signal 18 can initiate a
handshake communication wherein the system 10 verifies the portable
device 20 is within a predetermined distance from the vehicle 12.
More particularly, once the actuation signal 18 is received from
the portable device 20, the transmitter 16 can send the
verification signal 22 (e.g., at a low frequency) within a search
field (i.e., within a predefined area of the vehicle 12) to request
confirmation from the portable device 20. The transmitter 16 can
include an antenna 28 for transmitting the verification signal 22.
Similarly, the receiver 14 can include an antenna 30 for receiving
actuation signal 18 and confirmation signal 24 from the portable
device 20. It is to be appreciated that the verification signal 22
(and the corresponding search field) can radiate from the antenna
28 in all directions, though some directions may be stronger than
others. In particular, power can be appropriately provided to the
antenna 28 to allow communication only within a predefined area or
search field of the vehicle 12. It is to be appreciated that other
embodiments of the present disclosure can employ different
quantities and powers of antennas.
[0018] The portable device 20 can include a portable transmitter 40
for sending the actuation signal 18, which can be an open window
request signal, and/or the confirmation signal 24 to the vehicle
12. In particular, the transmitter 40 can include an antenna 42 for
sending the signals 18,24. The portable device 20 can also include
a portable receiver 44 for receiving the verification signal 22.
The receiver 44 can likewise include an antenna 46 for receiving
the signal 22. The portable device 20 can further include a
controller or control unit 48 for coordinating communication and
operations between the transmitter 40 and the receiver 44.
[0019] The control unit 48 can be operatively connected to one or
more actuators, such as first button 50 and second button 52 in the
illustrated embodiment. While only two actuators are shown in the
illustrated embodiment, and the two shown actuators are indicated
as being buttons 50 and 52, it is to be appreciated that any number
of actuators could be included on the portable device and any type
of actuators (e.g., sliding switches, dials, etc.) or combinations
thereof could be used. In the illustrated embodiment, the buttons
50 and 52 can correspond to an unlock button 50 and lock button 52.
Though not shown, additional buttons could be included, such as a
panic button and an open trunk button, among others.
[0020] In an exemplary embodiment, the buttons 50, 52 can activate
particular functionality of the vehicle 12 such as unlocking doors
of the vehicle 12 and locking doors of the vehicle 12,
respectively, by depressing each button 50 and 52 one or more
times. The functionality of the buttons 50, 52 can vary based on
the number of time or combination of buttons pressed. When smart
functionality is employed, pressing of the buttons 50, 52 can cause
actuation signal 18 to be transmitted from the transmitter 40 to
the receiver 14 on the vehicle 12. Receipt of the actuation signal
18 by the receiver 14 as confirmed by the body control unit 26 can,
in turn, cause transmitter 16 on the vehicle 12 to transmit the
verification signal 22 within a predefined search area. If the
portable device 20 is in the search area, the portable receiver 44
can receive the verification signal 22 and, through the control
unit 48, can generate a confirmation signal 24 to be sent from the
portable transmitter 40 to the receiver 14 of the vehicle 12.
Alternatively, the portable device 20 could be configured to employ
one-way communications with the vehicle 12, in which case the
portable device receiver 44 and associated antenna 46 could be
eliminated (as could the transmitter 16 on the vehicle 12). In this
arrangement, the actuation signal 18 would be sent from the
transmitter 40 to the receiver 14 and no handshake communications
would occur between the portable device 20 and the vehicle 12.
[0021] In an exemplary embodiment, remote opening of windows of the
vehicle 12 can be initiated through the unlock button 50. For
example, the unlock button 50 can be required to be pressed two
times and held for a predetermined period of time on the second
depression thereof. When this occurs, the control unit 48 can
instruct the transmitter 40 to transmit the actuation signal 18 as
an open window request signal. When in range, the receiver 14
onboard the vehicle 12 can receive the actuation signal 18. If
employing smart function technology, the body control unit 26 can
be informed of receipt of the open window request signal 18 and can
instruct the transmitter 16 to send a verification signal 22 to the
portable device 20 in response to receipt of the open window
request signal 18 by the receiver 14. As already described, the
verification signal 22 can be transmitted within a predefined area
of the vehicle 12 to request confirmation from the portable device
20. When in the predefined area, the portable device 20 can respond
by sending the confirmation signal 24 back to the vehicle 12.
Alternatively, when no smart function technology is included and/or
being used, only the open window request signal 18 need be
transmitted from the portable device to the vehicle 12 to initiate
a method for controlling opening of one or more power windows of
the vehicle 12.
[0022] The system 10 can further include at least one exterior
condition sensor (e.g., one or more of sensors 60, 62, 64) mounted
on the vehicle 12 for detecting at least one adverse exterior
condition relative to the vehicle 12. The body control unit 26 can
be configured to communicate with the exterior condition sensors
60, 62, 64. In the illustrated embodiment, the at least one
exterior condition sensor is at least one of a rain sensor 60 for
detecting rain as indicated schematically at 66, a temperature
sensor 62 for detecting an ambient temperature around the vehicle
12 as indicated schematically at 68 and/or a solar load sensor 64
for detecting a solar load on the vehicle 12 as indicated
schematically at 70, though it is to be appreciated that other
exterior condition sensors could be employed. In one example, the
at least one exterior condition sensor of the system 10 is the rain
sensor 60 and the at least one adverse exterior condition detected
by the sensor 60 is rain 66 on vehicle 12. In addition or in the
alternative, the at least one exterior condition sensor can be the
temperature sensor 62 and the at least one adverse exterior
condition can be the ambient temperature 68, such as a temperature
below a predetermined threshold temperature (e.g., 5 degrees
Celsius). Also in addition or in the alternative to one or both of
the foregoing, the at least one exterior condition sensor can be
the solar load sensor 70 and the at least one adverse condition
detected by the solar load sensor 64 can be the solar load 70,
particularly a solar load below a predetermined threshold solar
load.
[0023] In the illustrated exemplary system, the at least one
exterior condition sensor includes each of the rain sensor 60, the
temperature sensor 62 and the solar load sensor 64, and the at
least one adverse exterior condition includes rain, a temperature
below a predetermine threshold temperature and a solar load below a
predetermined threshold solar load. Advantageously, the sensor 60,
62, 64 can be those already provided on the vehicle 12 for other
purposes. For example, the solar load sensor 62 and the temperature
sensor 64 could be those already provided on the vehicle 12 and
associated with HVAC control unit 72. The rain sensor 60 could also
be a rain sensor already provided on the vehicle 12, such as one
used to control rain wipers of the vehicle 12, such as
schematically illustrated windshield wipers 74, as is known and
understood by those skilled in the art.
[0024] The control unit 26 can be configured to command opening of
one or more power windows of the vehicle 12 when the receiver 14
receives the open window request signal 18 from the portable device
20 and the at least one exterior condition sensor (e.g., one or
more of the sensors 60, 62, 64) does not detect an adverse exterior
condition (e.g., rain, a temperature below a predetermined
threshold temperature and/or a solar load below a predetermined
threshold solar load). In addition, if operating with the smart
function technology, the control unit 26 can be configured to
command opening of the one or more power windows of the vehicle 12
only when the confirmation signal 24 is received from the portable
device 20 responsive to the verification signal 22.
[0025] The one or more power windows of the vehicle could include,
for example, front driver's side window 76, front passenger's side
window 78, rear driver's side window 80 and rear passenger's side
window 82. Additionally, the one or more power windows could
include a sunroof, moon roof or the like as indicated at 84. Each
of the one or more power windows 76-84 of the vehicle 12 could
include an associated motor 76a, 78a, 80a, 82a, 84a for driving
opening and closing of the windows when powered. In an exemplary
embodiment, as shown in the illustrated embodiment, the one or more
power windows of the vehicle 12 include door windows 76, 78, 80, 82
of the vehicle 12 and the sunroof 84 of the vehicle 12. Energizing
of the respective motors 76a, 78a, 80a, 82a, 84a can be coordinated
and controlled by a power window control unit 86 as is known and
understood by those skilled in the art.
[0026] The system 10 can further include at least one close windows
switch for closing a plurality of the one or more windows after
opening, though this is not required. In one embodiment, the at
least one close windows switch includes a pre-existing switch or
button 90 already in the vehicle 12, such as the driver's window
power UP switch. Normally, the switch 90 is pressed once and held
to close the driver's window and, on some vehicles, additionally
pressed once and held for a predetermined period of time, e.g., 2
seconds, to automatically close the driver's window without
requiring further holding of the switch in the closed position.
Usually, the switch operates only a single window (e.g., the
driver's window). However, in this embodiment, the switch 90 is
operable to close a plurality of the one or more windows in the
vehicle (e.g., all open windows).
[0027] In particular, to close a plurality of the one or more
windows (e.g., the windows opened after receipt of the open window
request signal 18), the switch 90 is pressed twice and held on the
second depression. When this occurs, the control unit 26 can
command the power window control unit 86 to close all open windows
(e.g., windows 76-82 and 84). In one embodiment, such closing
action occurs for as long as the switch 90 is held on the second
actuation or depression. If the switch 90 is released before the
windows are closed, the closing action can be stopped, though this
is not required. The closing action that occurs after the switch 90
is actuated twice and held on the second actuation can be limited
to occur only when the switch 90 is held for more than a
predetermined period of time (e.g., 3 seconds).
[0028] Alternatively, the close window switch 90 can be some other
pre-existing switch in the vehicle 12 and share functionality with
this other switch. For example, the switch 90 could be the unlock
door switch inside the vehicle 12. In this case, when actuated
once, the switch 90 could unlock one or more doors on the vehicle;
however, when actuated twice and held on the second actuation, the
switch 90 could operate as indicated above to close all of the open
windows on the vehicle 12. Of course, the switch 90 could also be a
stand-alone independent switch and need not share any
functionality.
[0029] The switch 90 could also have open window functionality,
though this is not required. In one embodiment, the switch 90 can
open a plurality of the one or more windows of the vehicle 12 via
the control unit 26 (e.g., all windows of the vehicle 12 and/or the
same windows opened in response to the open window request signal
18). For such opening action, the switch 90 is actuated twice
(e.g., double-clicked) and held on the second actuation. When held
on the second actuation for more than a predetermined period of
time (e.g., 3 seconds), the control unit 26 can command the power
window control unit 86 to open the windows. Like the closing
operation, the opening operation can be configured to occur for
only as long as the switch 90 is held on the second actuation,
though this is not required.
[0030] The at least one close windows switch can also include a
switch 92 in addition or instead of the switch 90, though this too
is not required. The switch 92 can operate like the switch 90 to
close the plurality of the one or more windows upon actuation.
Unlike the switch 90, the switch 92 can be disposed on an exterior
of the vehicle 12 so as to be accessible from outside the vehicle
12. In one embodiment, the exterior switch 92 is a pre-existing
switch or button on the vehicle, such as an exterior lock button.
Normally, the switch 92 is pressed once to lock the doors of the
vehicle. However, in this embodiment, the switch 92, configured as
a button, can have dual functionality. For example, pressing the
switch 92 once can lock doors of the vehicle, whereas pressing the
switch 92 twice (i.e., double-clicking) can close the one or more
windows through the body control unit 26 and the power window
control unit 86. Alternatively, closing of the one or more windows
could be actuated by pressing the switch 92 twice and holding on
the second depression or pressing the switch once and holding for a
predetermined period of time.
[0031] Such a switch 92 could be advantageously employed in an
advanced vehicle remove actuation system where a user generally
keeps a key fob stowed when unlocking vehicle doors and/or starting
the vehicle. In these systems, the switch 92 continues to allow the
user to keep a key fob stowed while allowing the user to close the
one or more windows from the vehicle exterior. Like the switch 90,
the switch 92 could alternately be some other pre-existing switch
on the exterior of the vehicle 12 and could share functionality
with this other switch. Also, the switch 92 could be a stand-alone
independent switch and need not share any functionality.
[0032] With reference to FIG. 2, an exemplary smart communication
method 100 is shown for controlling opening of one or more power
windows of a vehicle. The method of FIG. 2 can be used with the
window control system 10 of FIG. 1 and will be described with
reference thereto, though this is not required. In 102, open window
request signal 18 is received wirelessly by the receiver 14 on the
vehicle 12 from the portable device 20 requesting opening of the
one or more power windows 76, 78, 80, 82, 84 of the vehicle 12. As
already described, the open request signal 18 being received 102
can result from transmission of the open request signal 18 from the
portable device 20 in response to the unlock button 50 being pushed
twice in succession and held for a predetermined period of time
(e.g., 3 seconds) after the second push.
[0033] In 104, at least one exterior condition is monitored or
measured relative to the vehicle 12 through at least one exterior
condition sensor mounted on the vehicle 12. As already described,
such monitoring can include monitoring at least one of rain 66,
ambient temperature 68 and/or solar load 70. In an exemplary
embodiment, the monitoring in 104 includes monitoring at least two
of rain 66, ambient temperature 68 and solar load 70. In another
exemplary embodiment, the monitoring in 104 includes monitoring
each of rain 66, ambient temperature 68 and solar load 70.
[0034] In 106, a determination is made as to whether or if opening
of the one or more power windows 76-84 of the vehicle 12 should be
inhibited based on the one or more exterior conditions monitored in
104. Determining if opening should be inhibited in 106 can include
determining whether the one or more exterior conditions monitored
in 104 is an adverse exterior condition. For example, determining
if opening of the one or more power windows 76-84 should be
inhibited can include comparing a measured value from 104 as
measured by the one or more condition sensors 60, 62 and/or 64 to a
threshold value stored in memory of the control unit 26. For
example, the rain sensor 60 can measure an amount of precipitation
being received by the vehicle 12. If this amount of precipitation
exceeds a threshold value stored in a memory of the body control
unit 26, a yes determination can be made in 106 that opening of the
power windows 76-84 should be inhibited.
[0035] Similarly, if the ambient temperature 68 measured by the
temperature sensor 64 is compared to a threshold value stored in
memory (e.g., 5 degrees Celsius) and determined to be below the
threshold value, a yes determination can be made in 106 that
opening of the one or more power windows 76-84 should be inhibited.
Also similarly, if determined that the solar load 70 as measured by
the solar load sensor 62 compares unfavorably to a solar load
threshold value stored in the memory of the body control unit 26, a
yes determination can be made in 106 that opening of the windows
76-84 should be inhibited. If the measured value or values from 104
compare favorably to threshold values stored in the memory of the
body control unit 26 (e.g., a measured exterior condition is not
determined to be an adverse condition), then it is determined in
106 that opening of the power windows 76-84 should not be
inhibited.
[0036] When determined that opening of the one or more power
windows 76-84 should be inhibited in 106, opening of the one or
more power windows 76-84 is inhibited in 108. Otherwise, the one or
more power windows 76-84 can be opened in 110. Accordingly, the one
or more power windows 76-84 of the vehicle 12 can be opened in 110
in response to the open window request signal 18 received in 102
unless the one or more exterior conditions monitored in 104 is
determined in 106 to be an adverse exterior condition. Once opened,
the one or more windows 76-84 can be subsequently closed via the
switch 90 as described hereinabove.
[0037] Optionally, when smart communication functionality is
employed, with additional reference to FIG. 3, the verification
signal 22 can be transmitted wirelessly to the portable device 20
when the open window request signal 18 is received by the receiver
14 (i.e., the verification signal 22 is responsive to the open
window request signal 18) in 120. Provided the portable device 20
is within a predefined area or range and thus capable of receiving
the verification signal 22, the confirmation signal 24 can be
received in 122 wirelessly from the portable device 20 that is
responsive to the portable device 20 receiving the verification
signal 22. In 124, under smart communication functionality, the one
or more power windows 76-84 are only opened when the confirmation
signal is received in 122. Accordingly, opening of the one or more
power windows in 110, when smart communication functionality is
employed, is allowed only when the confirmation signal 24 is
received in 122.
[0038] Referring now to FIG. 4, an exemplary smart communication
method 400 is shown for controlling closing of one or more vehicle
windows. In one example, the method 400 is utilized with the window
control system 10 of FIG. 1 and will be described with particular
reference thereto, though this is not required. At 402, key fob 20
transmits an initial close window activation signal 18. The close
window activation signal 18 can be transmitted in substantially any
wireless protocol in order to facilitate appropriate action
thereof. The window activation signal 18 is received by onboard
controller 26 at 404 through receiver 14 and the controller 26
returns low frequency verification signal 22 via the transmitter 16
subsequent to receipt of the closed window activation signal
command 18. At 406, a determination is made as to whether the key
fob 20 received the low frequency verification signal 22. If the
key fob 20 received the low frequency verification signal 22, a
radio frequency identification signal 24 is emitted by the key fob
20 at 408.
[0039] At 410, the onboard controller 26 receives the radio
frequency identification signal 24 via the receiver 14 and sends a
close command to window control unit 86. A determination can be
made as to whether a window is fully closed at 412 and, if not, the
onboard controller 26 sends another low frequency verification
signal 22 to the key fob 20 at 414. At 416, a determination is made
as to whether the key fob 20 received the low frequency signal 22.
If so, the method continues at 406 in a loop wherein the onboard
controller 26 receives an identification signal 24 from the key fob
20 and continues to send a close command to the windows controller
86. As long as the low frequency verification signal 22 is received
by the key fob 20 and an identification signal 24 is returned
thereto, the close command continues to drive the one or more
windows closed.
[0040] This operation continues until the confirmation signal 24 is
not received by the onboard controller 26, such as at 418, which
would elicit a stop command sent to the windows controller 86. The
methodology ends at 422. If the window is fully closed at 412, the
methodology proceeds directly to the end function at 422.
Similarly, if at 406 the key fob 20 no longer emits close command
signal (such as when a user stops holding a button down), the
operation is interrupted and the method ends.
[0041] It is to be appreciated that in connection with the
particular exemplary embodiments presented herein certain
structural and/or functional features are described as being
incorporated in defined elements and/or components. However, it is
contemplated that these features may, to the same or similar
benefit, also likewise be incorporated in common elements and/or
components, or separated, where appropriate. For example, the
control unit 36 could be distributed throughout the system 10. It
is also to be appreciated that different aspects of the exemplary
embodiments may be selectively employed as appropriate to achieve
other alternative embodiments suited for desired applications, the
other alternate embodiments thereby realizing the respective
advantages of the aspects incorporated herein.
[0042] It is also to be appreciated that particular elements or
components described herein may have their functionality suitably
implemented via hardware, software, firmware, or in combination
thereof. Additionally, it is to be appreciated that certain
elements described herein as incorporated together may under
suitable circumstances be stand-alone elements or otherwise
divided. Similarly, a plurality of particular functions described
as being carried out by one particularly element may be carried out
by a plurality of distinct elements acting independently to carry
out individual functions, or certain individual functions may be
split-up and carried out by a plurality of distinct elements acting
in concert. Alternately, some elements or components otherwise
described and/or shown herein as distinct from one another may be
physically or functionally combined where appropriate (e.g., body
control unit 36, HVAC control unit 72 and power window control unit
86).
[0043] It will be appreciated that various of the above-disclosed
and other features and functions, or alternatives or varieties
thereof, may be desirably combined into many other different
systems or applications. Also that various presently unforeseen or
unanticipated alternatives, modifications, variations or
improvements therein may be subsequently made by those skilled in
the art which are also intended to be encompassed by the following
claims.
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